Blues Traveler talks about return to Maine for show at Waterville Opera House Share Blues Traveler members from left are Brendan Hill (drums), Chan Kinchla (guitar), Tad Kinchla (bass), John Popper (vocals, harmonica), and Ben Wilson (keyboards). Photo by Graham Fielder It’s time to celebrate the return of concerts to the Waterville Opera House, and what better way of doing that then with a performance by Blues Traveler. I had the pleasure of interviewing them when they appeared at Colby College in the early 90s as they toured in support of their second CD, “Travelers & Thieves,” so when I learned that they were coming back to Waterville supporting their newest album, “Traveler’s Blues,” I put in a request to chat with a member and scored an opportunity to converse with Ben Wilson, the keyboardist and newest member of that popular group. I began by asking him when he joined the band?